Need guidance about basic shapes

[Bhanu Singh <bps36 case edu>]

Hi,

I am using basic (standard) shape arc in my diagram.

How can i embedded textbox within in Arc shape. Arc is basic shape in Dia so i will have to modify basic shapes in Dia to insert a textbox. 

Dia provides a option to add Text object to an ARC but this does not embedded 

Text with the Arc shape. It makes it difficult to extract text from a corresponding arc from a SVG file.

Please let me know how basic shapes can be modified in Dia

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Bhanu Singh